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通过神经生理学工具测量不同脉冲持续时间神经肌肉电刺激对锥体束相关痉挛患者的疗效 (PD-NMES-SPAS)

2026年10月5日 更新者:Athanasios K. Chasiotis、University of West Attica

通过神经生理学工具测量的高脉冲持续时间与低脉冲持续时间神经肌肉电刺激(NMES)在上肢锥体束相关痉挛患者中的有效性:一项随机对照试验

Spasticity is a common symptom that affects more than 50% of patients with upper motor neuron lesions due to damage on pyramidal tract. Despite the current pharmacological and physical therapy rehabilitation methods, previous studies have highlighted the beneficial role of Neuromuscular Electrical Stimulation (NMES) on managing upper limb spasticity. However, due to heterogeneity of application parameters there is a lack of a standardized protocol for spasticity management. The aim of the study will be to examine the effects of high versus low pulse duration neuromuscular electrical stimulation on upper limb spasticity on patients with pyramidal tract-related spasticity.

A total of 45 patients will be randomized (1:1:1 ratio) to either high pulse duration NMES (HPD-NMES) or low pulse duration NMES (LPD-NMES) or Control group, receiving the standard of care. Randomization will be performed by an independent investigator, who will allocate participants to one of three groups, using a random number generator, prior to baseline assessment. Each group will receive a 15min-conventional-physiotherapeutic protocol. HPD-NMES and LPD-NMES will receive an additional 30min-NMES protocol of high and low pulse duration, respectively. Pre and post intervention spasticity will be evaluated using Range of Motion (ROM) of the elbow joint through electronic goniometer, Modified Ashworth Scale (MAS) and surface electromyography (EMG). Furthermore, Modified Barthel Index (MBI) and 12-version of World Health Organization Disability Assessment Schedule (WHODAs) will be used for evaluating participants' quality of life. Statistical analysis will aim to highlight the effects of NMES both on the EMG-electrophysiological parameters and on clinical evaluation scales. Additionally, it will seek to determine which of the two NMES pulse durations produced more beneficial results in reducing spasticity levels.

研究概览

详细说明

Spasticity can be characterized as a clinical phenotype related to upper motor neuron syndrome and is highly correlated with pyramidal tract lesions, leading to patients' quality of life degradation. The assessment of spasticity encompasses both clinical rating scales (such as Modified Ashworh Scale, Modified Tardieu Scale and Composite Spasticity Scale) and neurophysiological approaches through surface electromyography (such as Hoffmann reflex (H-reflex) , Mwave, and Hmax/Mmax ratio (or M/H amplitude ratio), which seem to be elevated in spasticity. A wide spectrum of therapeutic modalities, including pharmacological and non-pharmacological interventions, have been developed for the management of spasticity. Among non-pharmacological interventions, physical therapy through Neuromuscular Electrical Stimulation can be used to manage upper and lower limb spasticity through the reduction of stretch reflex excitability, facilitation reciprocal inhibition and spinal excitability modulation.

This randomized controlled trial consists of:

  • Participants randomization into one control group (group A, n=15) and two intervention groups: group B (High Pulse Duration Neuromuscular Electrical Stimulation/HPD-NMES, n=15), group C (Low Pulse Duration Neuromuscular Electrical Stimulation/LPD-NMES, n=15).
  • Conventional Physiotherapy training program for 15 minutes per session, 3 times per week for 6 weeks total (groups A, B,C) and Neuromuscular Electrical Stimulation protocol for 30 minutes per session, 3 times per week for 6 weeks total (Group B=HPD-NMES and Group C=LPD-NMES)
  • Primary spasticity evaluation tool at baseline and post intervention (6weeks) through surface electromyography.
  • Secondary spasticity evaluation tools (Modified Ashworth Scale/MAS, Range of Motion/ROM, Modified Barthel Index/MBI and 12 version World Health Organization Disability Assessment Schedule 2.0/ WHODAS 2.0) at baseline and post-intervention (6 weeks).

Statistical analysis will aim to highlight the effects of NMES both on the EMG-electrophysiological parameters and on clinical evaluation scales. Additionally, it will seek to determine which of the two NMES pulse durations produced more beneficial results in reducing spasticity levels.

研究类型

介入性

注册 (实际的)

45

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

    • Attica
      • Athens、Attica、希腊、12462
        • Attikon Hospital

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • diagnosis by neurologist with first damage of pyramidal tract with upper limb spasticity
  • absence of cognitive dysfunction
  • normal vital signs
  • absence of pharmacological treatment of spasticity (per os pharmacological treatment does not affect spasticity results and was not an exclusion criteria on patients' recruitment).

Exclusion Criteria:

  • prior neurological damage to pyramidal tract
  • cognitive decline
  • dermatological damages
  • prior musculoskeletal dysfunction on the upper limb with spasticity
  • presence of metallic residues on the spastic upper limb
  • presence of seizures or psychiatric disorders
  • severe malformation or obesity (BMI >30kg/m2)
  • history of coronary or other cardiovascular diseases (deep vein thrombosis, pulmonary embolism)
  • presence of systematic inflammatory disease
  • cancer on terminal stages
  • pregnancy.

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:三倍

武器和干预

参与者组/臂
干预/治疗
实验性的:High Pulse Duration Neuromuscular Electrical Stimulation (HPD-NMES)

Participants will receive 15 minutes Conventional physiotherapy training program (same as control group) and 30 minutes High Pulse Duration Neuromuscular Electrical Stimulation (HPD-NMES)

30 minutes High Pulse Duration Neuromuscular Electrical Stimulation (HPD-NMES)

  • NMES Application Parameters:

    • Waveform: rectangular, biphasic. Symmetrical
    • Pulse Duration:450μsec
    • Frequency: 100Hz
    • Intensity: Optical muscle contraction and patients' tolerability
    • Ramp up: 2sec
    • Ramp down:2sec
    • ON/OFFtime: 10sec/30sec (1:3)
  • Treatment Duration: 30 minutes per session, 3 times per week for 6 weeks total.

其他名称:
  • HPD-NMES

Conventional physiotherapy training program

  • Seated upper extremity program, single limb exercises, strength training, stretching training (with or without) external resistance, Neurofacilitatory techniques (ie. Propriocetive Neuromuscular Facilitation (PNF), NeuroDevelopmental Treatment- Bobath (NDT-Bobath) etc)
  • Treatment Duration: 15minutes per session, 3 times per week for 6 weeks total.
其他名称:
  • 控制组
实验性的:Low Pulse Duration Neuromuscular Electrical Stimulation (LPD-NMES)

Participants will receive 15 minutes Conventional physiotherapy training program (same as control group) and 30 minutes Low Pulse Duration Neuromuscular Electrical Stimulation (LPD-NMES)

Conventional physiotherapy training program

  • Seated upper extremity program, single limb exercises, strength training, stretching training (with or without) external resistance, Neurofacilitatory techniques (ie. Propriocetive Neuromuscular Facilitation (PNF), NeuroDevelopmental Treatment- Bobath (NDT-Bobath) etc)
  • Treatment Duration: 15minutes per session, 3 times per week for 6 weeks total.
其他名称:
  • 控制组

30 minutes Low Pulse Duration Neuromuscular Electrical Stimulation (LPD-NMES)

  • NMES Application Parameters:

    • Waveform: rectangular, biphasic. Symmetrical
    • Pulse Duration:100μsec
    • Frequency: 100Hz
    • Intensity: Optical muscle contraction and patients' tolerability
    • Ramp up: 2sec
    • Ramp down:2sec
    • ON/OFFtime: 10sec/30sec (1:3)
  • Treatment Duration: 30 minutes per session, 3 times per week for 6 weeks total.

其他名称:
  • LPD-NMES
其他:Control

Patients will receive 15 minute conventional physiotherapy training program that includes seated upper extremity program, single limb exercises, strength training, stretching training (with or without) external resistance, Neurofacilitatory techniques (ie. Propriocepive Neuromuscular Facilitation (PNF), NeuroDevelopmental Treatment -Bobath (NDT-Bobath) etc)

Conventional physiotherapy training program

  • Seated upper extremity program, single limb exercises, strength training, stretching training (with or without) external resistance, Neurofacilitatory techniques (ie. Propriocetive Neuromuscular Facilitation (PNF), NeuroDevelopmental Treatment- Bobath (NDT-Bobath) etc)
  • Treatment Duration: 15minutes per session, 3 times per week for 6 weeks total.
其他名称:
  • 控制组

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Changes in surface electromyography (EMG) parameters
大体时间:Baseline and 6 weeks

1. Changes in surface electromyography (EMG) parameters (Hoffmann reflex(H-reflex) of the flexor carpi radialis, M wave, F response of the median nerve, Hmax/Mmax ratio (or M/H amplitude ratio), motor unit number estimation (MUNE) and F response of the spastic upper limb).

Baseline and 6 weeks

次要结果测量

结果测量
措施说明
大体时间
Modified Ashworth Scale
大体时间:Baseline and 6 weeks

1. Changes in Modified Ashworth Scale (MAS) scores. A 5-item evaluation scale that assessed muscle hypertonia. The minimum score is 0 (normal muscle tone) and the maximum is 4 (limb rigid). Higher scores indicate increase in spasticity.

Baseline and 6 weeks
Range Of Motion
大体时间:Baseline and 6 weeks

Changes in Range of Motion (ROM) scores: The assessment will be conducted using an electronic goniometer to precisely determine the range of motion of the elbow joint affected by spasticity. Patients will be positioned in the supine position on the examination table with the affected side oriented toward the examiner. Then, the examiner will align the goniometer with anatomical landmarks the base of the goniometer over the lateral epicondyle of the humerus, the stable axis along the humerus and the movable axis along the radius. The angle of the elbow-flexion will be recorded, and the measured value will be substracted from 145o (the range of motion of a full elbow flexion) in order to calculate elbow extension. Decreases in elbow extension scores indicate reduction in spasticity levels.

Baseline and 6 weeks
Modified Barthel Index
大体时间:Baseline and 6 weeks

Changes in Modified Barthel Index (MBI) scores. Modified Barthel Index is an evaluation scale that assesses patient's performance in activities of daily living. It consists of 10 domains with activities of daily living and mobility. Greater scores are correlated with decreased level of dependence

Baseline and 6 weeks
World Health Organization Disability Assessment Schedule 2.0
大体时间:Baseline and 6 weeks

Changes in 12 version World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) scores: WHODAS 2.0 is an evaluation scale that assesses perceived disability associated with the health condition in the 30 days preceding its application. Is divided into six domains: i) cognition, ii) mobility, iii) self-care, iv) interpersonal relationships, v) activities of daily living and vi) participation. Each item is rated from 1 (no difficulty) to 5 (extreme difficulty or unable to do). Larger scores refer to larger disability.

Baseline and 6 weeks
Changes in biceps brachii diameter (Ultrasound, objective measure)
大体时间:Baseline and 6 weeks

Biceps brachii diameter will be objectively assessed by standardized multi-mode ultrasound at baseline and in 6 weeks in all three study groups (HPD-NMES, LPD-NMES, and Control). The diameter's assessment will be measured on 90o elbow flexion and on 0ο extension.This non-invasive, safe and reproduciple measure requires minimal time and is conducted within scheduled study visits, without altering trial design, primary outcomes, or participant burden.

Baseline and 6 weeks

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2026年1月6日

初级完成 (实际的)

2026年6月30日

研究完成 (实际的)

2026年7月31日

研究注册日期

首次提交

2025年12月10日

首先提交符合 QC 标准的

2025年12月26日

首次发布 (实际的)

2026年1月6日

研究记录更新

最后更新发布 (实际的)

2026年10月7日

上次提交的符合 QC 标准的更新

2026年10月5日

最后验证

2026年10月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

不

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

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